Electrical socket



May 3, 1932. H. R HALE ELECTRICAL SOCKET Filed Sept. 9, 1929 Patented May 3, 1932 UNITED STATES PATENT OFFICE HARRY RANNEY HALE, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO HALE BROTHERS LIMITED, OF MONTREAL, CANADA ELECTRICAL SOCKET Application filed September 9, 1929. Serial No. 391,431.

The invention relates to an electrical sockextends inwardly to divide the cap body into ct, as described in the present specification the socket compartment 26 and the (30111160- and illustrated in the accompanying drawtion compartment 25, all of these parts heings that form part of the same. ing made of an insulating composition by I: The invention consists essentially of the means of a molding and pressing operation. 65 novel features oi construction pointed out The cap 16 is formed with the threaded broadly and specifically in the claim for nipple 2 land is screwed onto the thread 19 novelty following a description containing and closes; one end of the casing and therean explanation in detail of an acceptable form tore the nipple forms the means for attach- :e f 1 i ti mg the soc ketto the electrical connections. so

The objects of the invention are to elimi- Naturally this cap maybe altered to suit the nate the use of metal in so far as it is possitype of socket that is made, and the descripble to do so in the manufacture of electrical tiOn herein is merely for the better undersockets, keyless and otherwise as the case may standing of the invention which is particu- 35 be, and thereby produce an article that will ltt1'ly concerned 111 the partitloned casing us in itself form the frame of the casing for formingthe connection and socket chambers the electrical contacts, and at the same time 25 and 26. be extremely efiic'ient in operation and less The parallel ribs 27 and 28 extend partially liable in conventional sockets to get out of across the bottom surface of the partition 17 1?] O 1 t r duce the cost of production and and are integral therewith, and between these to modernize electrical socket equipments of ribs '27 and 28 the spring electrical contact this particular class so that the newer meth-- 29 is rigidly secured to the surface of the said ods may be used to carry out the complete partition, between the ribs 27 and 28, while construction of frame and casing at the least the threaded barrel contact 30 is secured possible expense; and generally to provide through the flanges 31 to the partition beyond in electrical fixtures and parts a durable and the ribs 27 and 28, this contact encircling the reliable socket. inner wall surface of the chamber 26 and In the drawings, Figure 1 is an elevational forming the means'of attaching a lamp or view of the socket. other translating device to the socket member,

Figure 2 is a longitudinal sectional view though it must be understood always that 59 of the socket. other means of attachment may be secured Figure 3 is an end View of the socket. in this connection or terminal chamber.

Figure 4 is a plan end view of the socket The electrical terminals 32 and 33 are sehaving the cover removed. cured in the connection chamber 25 between 177 Figure 5 is a detail of the terminal showing the parallel ribs 34. and 35 extending from 55 an additional insulation plate disc. the partition 22 and crossing said partition Figure 6 is a longitudinal sectional view of and forming part therewith. a slight modification of the invention. These terminals extend upwardly and are Figure '7 is a longitudinal sectional view flanged at their outer ends 36 and 37 respecof the socket showing the terminals in an tively and extend into thes lots 38 and 39 in 9 insulating separating plate. the inner wall surfaces at the upper end, the Like numerals oi reference indicate correscrews ltl and 41 torming the terminal means spondlng parts in the various figures. of attachment for the wires.

Referring to the drawings, the numeral 15 In Figure 6 a slight modification is shown indicates the casing complete including the and in this modification the partition 42 is of cap 16, and the partition 17. non-conducting material but is rigidly se- The cover or cap 16 is screwed to the body cured in the casing and supported on the 18, which is externally threaded at 19, the shoulder 43 corresponding to the shoulder 21, wall of said body tapering slightly at 20 to in other respects it is exactly the same as the y y the shoulder 21 from which the partition 22 partition 22 forming part with the casing, we

which is of course the preferable construction.

In Figure 5 the terminals 32 and 33 are shown as slotted at 44 and 45 and the insulating disc 46 is shown as slotted at 47 and 48 and mounted on the terminals for the security in regard to interference, but this in most cases will be found quite unnecessary, yet it is an addition that may be of service.

In the operation of this socket, the wiring is connected to the terminals 32 and 33 and the lamp or other translating device is secured in the inner chamber of the socket, otherwise the socket proper and this translating device forms an electrical connection with the spring contact 29, this spring contact being connected to the terminal 33 by the screw 49 which completes that side of the electrical connection. This screw 49 extends through the partition 22 and is part of the assemblyvof the socket pieces.

The barrel contact 30 through one of the flanges 31 is secured through a screw 50 to the terminal 32, thus the screw 50 not only serves to secure the barrel contact in place, but also holds the terminal 22 and forms the electrical connection on either side.

The other flange of the barrel contact is secured by the screw 51 which is advantageous in so far as the electrical connection is concerned.

It will thus be seen that a complete socket is made in so far as its casing is concerned, of the latest and most approved material, that is to say, it is complete, ready for the terminals and contacts, whereas in present practice the filling of the casing constitutes the electrical equipment which is both cumbersome and expensive as Well as lacking the security of the onepiece frame, and casing forming the insulation of the socket.

What I claim is An electrical socket comprising a casing of insulating pressed material constituting the screw cap and connection chamber and the reduced socket proper divided from the connection chamber by a ribbed partition of the same material as the casing and pressed and moulded therewith and having threaded holes therethrough, metal connecting members in said socket chamber connected by screws in said threaded holes to terminals in said connection chamber,and a spaced insulating disk slotted and secured to said terminals.

Signed at Montreal, Canada, this 6th day of August, 1929.

- HARRY RANNEY HALE. 

